نتایج جستجو برای: alginate nanoparticles

تعداد نتایج: 115076  

Journal: :International Journal of Pharmaceutical Sciences and Drug Research 2019

Journal: :Journal of the Chilean Chemical Society 2018

2013
Sharif M. Abdelghany Daniela Schmid Jill Deacon Jakub Jaworski Francois Fay Kirsty M. McLaughlin Julie A. Gormley James F. Burrows Daniel B. Longley Ryan F. Donnelly Christopher J. Scott

meso-Tetra(N-methyl-4-pyridyl) porphine tetra tosylate (TMP) is a photosensitizer that can be used in photodynamic therapy (PDT) to induce cell death through generation of reactive oxygen species in targeted tumor cells. However, TMP is highly hydrophilic, and therefore, its ability to accumulate intracellularly is limited. In this study, a strategy to improve TMP uptake into cells has been inv...

Journal: :Colloids and surfaces. B, Biointerfaces 2014
Tatiana Andreani Charlene P Kiill Ana Luiza R de Souza Joana F Fangueiro Lisete Fernandes Slavomira Doktorovová Dario L Santos Maria L Garcia Maria Palmira D Gremião Eliana B Souto Amélia M Silva

The present work aimed at studying the interaction between insulin and SiNP surfaced with mucoadhesive polymers (chitosan, sodium alginate or polyethylene glycol) and the evaluation of their biocompatibility with HepG2 and Caco-2 cell lines, which mimic in vivo the target of insulin-loaded nanoparticles upon oral administration. Thus, a systematic physicochemical study of the surface-modified i...

2009
A. Bar-Shir L. Avram S. Cohen

Introduction Ca plays a vital role in many biological processes including cell differentiation and apoptosis, cardiac contractility, neurotransmission and brain function. 1 Because of the importance of Ca levels in maintaining proper function and in diseases, there is an increasing need for the development of new robust imaging platforms to perform in vivo detection of changes in Ca levels in w...

2015
Marlene A Lopes Bárbara Abrahim-Vieira Claudia Oliveira Pedro Fonte Alessandra M T Souza Tammy Lira Joana A D Sequeira Carlos R Rodrigues Lúcio M Cabral Bruno Sarmento Raquel Seiça Francisco Veiga António J Ribeiro

Alginate-dextran sulfate-based particles obtained by emulsification/internal gelation technology can be considered suitable carriers for oral insulin delivery. A rational study focused on the emulsification and particle recovery steps was developed in order to reduce particles to the nanosize range while keeping insulin bioactivity. There was a decrease in size when ultrasonication was used dur...

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